The Study Of Compound Trend Complements "down" And "down" In The Teaching Of Chinese As A Foreign Language

"xialai" and "xialai" are two common words in modern Chinese.When they are used as directional complements,they often become the difficulty for foreign students to learn.Based on the ontology research,according to the semantics of "xialai" and "xiaqu" in CCL corpus,the collocation of verbs and sentence patterns are combed,and the use of interlanguage corpus of foreign students is analyzed.In terms of semantics,"xialai" may indicate a change in the displacement of a person or thing from high to low or from a higher sector to a lower one;so that a part of an object is rectified;the separation or fixation of a body;the completion or continuous development of an action;entering a new state."xiaqu"can indicate a change in the displacement of a parson or thing from high to low or from a higher department to a lower one;to separate a part of an object from the whole;to act or to continue in a state;the change of state from dynamic to static.In the collocation of words,"xialai" and "xiaqu" can be collocated with verbs with[+displacement][-orientation],[+causing displacement][-orientation]or[+separation][+removal]semantics;[+decision]meaning and[+acquisition]meaning of verb collocation words can only be collocated with "xialai";verbs that mean[+separation][+removal]can only be collocated with "xiaqu".The relationship between "xialai" "down" and "xiaqu" can be divided into three main types.They can be used in the middle of verb and "xialai/qu",between "xia" and "lai/qu" and after "xialai/qu".The usage of these three positions is not exactly the same.The second type of "mid-object" is relatively more,the first and the third are relatively less.The error analysis is mainly divided into two forms:the investigation of two interlanguage corpora and the questionnaire,in which four types of errors are obtained by exhaustive analysis of the conditions in the corpus.Finally,based on the investigates and the arrangement of "xialai" and "xiaqu" in the outline and teaching material,put forward some suggestions and opinions from two aspects of teaching content and teaching form in order to help the teaching.